Hi there. I have a problem i thought maybe you could solve. I have iMac 27" and i need to make a fresh install of Mac OS X 10.6 (i have a retail version). The problem is when i try to boot from install DVD the screen just hangs up showing apple logo (and no progress indicator). HDD is empty at the time. I tried formatting it to ntfs, fat and even leave disk space unpartitioned. Result is always the same. Resetting PRAM or trying to boot from USB copy of installation also doesn't help. Some say it's a problem with volume bootability ("bless" modes). Maybe anyone knows how i can fix this problem?